<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>

<!-- 3种导入静态文件的方式  -->
<!--    <link rel="stylesheet" href="../static/index.css">-->
<!--    <link rel="stylesheet" href="/static/index.css">-->
    <link rel="stylesheet" href="{{ url_for('static', filename='index.css') }}">

</head>
<body>
    <h2>Index</h2>
    <hr>

    <h4>name: {{ name }}</h4>

</body>
</html>